Finding the Fourth Proportional to 514,981.80, 772,472.70 and 135,901.80
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Solution
The fourth proportional to 514,981.80, 772,472.70 and 135,901.80 is: 203,852.70
Step by Step Solution
- Step 1: Write the proportion equation
514,981.80 : 772,472.70 = 135,901.80 : x - Step 2: Convert to fraction form
514,981.80/772,472.70 = 135,901.80/x - Step 3: Cross multiply
514,981.80x = 772,472.70 × 135,901.80 - Step 4: Simplify right side
514,981.80x = 104,980,430,380.86 - Step 5: Solve for x
x = 104,980,430,380.86/514,981.80 - Step 6: Final answer
x = 203,852.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.